Original Research Paper

Multiphasic Mri And Mdct In Evaluation Of Adrenal Masses- A Cross-sectional Observational Study

Abstract :

Objectives- To identify adrenal masses and characterize them based on imaging features and invasion using MDCT and MRI.Methods- Based on clinical suspicion of adrenal mass or ultrasonography indicating a adrenal mass, Patients underwent MDCT and MRI of abdomen. Multiple phases were acquired depending on nature of case and whether multiple phases are able to add to or rule out a diagnosis. Result- In the 40 patients who underwent the study-10(25%) were adrenal adenomas,4(10%) myelolipoma, 10(25%) were phaeochromocytoma of both benign and malignant type, 2(5%) were adrenocortical carcinoma, 7(20%) were metastatic lesions 1(2.5%) were teratoma, Infectious causes included adrenal tuberculosis in 2 patients (5%) 4 cases (10%) of adrenal hyperplasia. Conclusion- Due to fast acquisition, high spatial resolution, volumetric imaging with multiplanar and 3D reconstruction and better evaluation of vascular anatomy and their relation with the mass contrast enhanced MDCT is a good modality for evaluation and characterization of adrenal masses. MRI has better soft tissue contrast resolution and availability of multiple sequences like in phase and out phase imaging, GRE helps to understand characteristics of mass.

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